For example, I have this jQuery function:
function example(){
  var trigger = $('.image');
  trigger.each(function(e){
    // here I want to change the background color of the :after pseudo-element
    $(this:after).css('background-color', 'red');
    // ^ the above obviously doesn't work
  });
}
How can I add, change or remove CSS attributes to a pseudo-element of $(this)?
 
    